A vibrant 3D character design key visual poster for a commercial youth adventure IP, featuring a unified universe of chibi-style cartoon boys. The scene is set on a sunlit beach with golden sand, turquoise waves, and a clear blue sky dotted with fluffy white clouds. In the foreground, five distinct characters interact dynamically: one with spiky red hair rides a neon-yellow surfboard mid-wave, grinning confidently; another with soft blue hair kneels to build a sandcastle, his eyes wide with curiosity; a green-haired boy in a striped rash guard performs a skateboard trick on a driftwood log, arms outstretched for balance; a purple-haired character splashes water playfully at a shy black-haired boy, who laughs while holding a seashell. Each character has unique clothing—from tropical print shorts to oversized hoodies—and expressive facial features that highlight their distinct personalities: bold, creative, energetic, mischievous, and gentle. The background includes subtle details like a distant lighthouse, seagulls flying overhead, and a beach umbrella with the IP logo. The overall aesthetic is trendy and premium, with smooth 3D textures, bright yet balanced lighting, and a warm color palette that emphasizes youth and adventure. "YOUTH WAVES" is displayed in bold, surf-inspired typography at the top, with "UNLEASH THE ADVENTURE" in smaller text below, tying the scene together as a cohesive, marketable IP visual.
